I had a friend with a 128D which was the version with detachable keyboard and built in disk drive. I eventually had a 128 much later. The C64C redesign basically gave the C64 the same form factor as the 128 only smaller since there were fewer keys on the keyboard (and a smaller motherboard I would imagine). The original C64 was thicker but not as wide or deep as the 128.
The 128 could operate in C64 mode which was good since there wasn't a whole lot of software specifically for the 128...and virtually no games. The 80 column mode was nice for productivity stuff though and it was twice as fast with a much faster disk drive. The C64 was limited to 40 columns.
I had a friend with a 128D which was the version with detachable keyboard and built in disk drive. I eventually had a 128 much later. The C64C redesign basically gave the C64 the same form factor as the 128 only smaller since there were fewer keys on the keyboard (and a smaller motherboard I would imagine). The original C64 was thicker but not as wide or deep as the 128.
The 128 could operate in C64 mode which was good since there wasn't a whole lot of software specifically for the 128...and virtually no games. The 80 column mode was nice for productivity stuff though and it was twice as fast with a much faster disk drive. The C64 was limited to 40 columns.